Road-grader.



A. W. HADLEY &H. M. SMITH.

ROAD GRADER.

f APPLICATION I'ILEDAPR. 9, 1909.

940,389., Patented N0v.16, 1909.

j v /35 21 Z0 2 WITNESSES" I M agQ/AMM' ATTORNEY.

A. w. HADLEY & H. M. smiru.

ROAD GBADER.

APPLICATION FILED APR. 9, 1909.

Patented Nov. 16,1909.

2 SHEETS-SHEET 2 WITNESSES.-

[.VVENTORS:

. ATTORNEY.

clarion.

A133? GEE WE HADLEY AND IiAItVE'LiC Ill. SMITH, F MONROE TO'iVhTSHLh, MAN

- COUNTY, ENIQI AINA.

ROAD-GRADEE.

To all who-m it may concern:

Be it known that we, ARNOLD W. HADLEY and HARVEY l d. SMITH, citizens of the United States, residing in Monroe township,

the county of Morgan and State of Indiana, have invented certain new and useful improvements in Road-Graders; and we do declare the following to be a full, clear, and exact description of the invention. reference being had to the accompanying drawand to theligures of reference marked thereon, which fomn a part of this specification.

This invention relates to road-graders of the class that are to be adjusted so as to be adapted to operate either along the l es of the roads for moving the gravel or rh over to the middle portions of the ad, or to operate along the middle of the och for grading and crowning the road .l" The object of the invention'is to provide an improved adjustable road grader that. will be adapted to operate on all portions of the road, so as to grade the road completely in a thorough manner and leave it crowning and smooth; a further object being toprovide a grader of the above-mentioned charactor that may be cheaply constructed and be convenient, durable and economical in The invention consists in a road grader comprising compound scraping blades hingedly and adjustably connected together in a novel manner, so that both blades may operate as scrapers or be adjusted to enable one blade to serve as a guide runner and the other blade operate as a scraper, novel draft devices for the blades, and a novel form of drag connected in a novel manner to the blades; and the invention consists further in the parts and combinations and arrangements of parts as hereinafter particularly described and then pointed out in the appended claims.

Referring to the drawings Figure 1 is a top plan of the improved grader adjusted for operation on the middle of a road, to draw the gravel or earth up to the middle and smooth it; Fig. 2, an inverted plan view of the grader; Fig. 3, a longitudinal sectional view on the line A A. in Fig. 1 with portions of the draft rigging omitted; Fig. 4, a vertical sectional view on the line B in F ig. 1; 5, a top plan of the grader adjusted gee specification oi Letters Patent.

Application filed. April 9,

Patented Nov. 1%., 1909. 19109. Serial fie. aeaeo l.

' so as to operate on either side of the middle of a road to draw the gravel or earth toward the middle; Fig. 6, a fragmentary plan view showing portions of the grader in detail; Fig. 7, a perspective view of one part of the draft rigging; Fig. 8, a fragmentary hori zontal sectional view on the line C C in Fig. o; Fig. 9, a top plan of one of the tie bars for adjustably connecting the scraping blades together; Fig. 10, a fragmentary side elevation of parts of the draft rigging; 11, a perspective view of parts of the draft rigging; Fig. 12, a vertical sectional view of the drag on the line D D in Fig. l; and Fig.- 13, a fragmentary transverse sectional view of the drag on the line E E in Fig. 12..

Similar reference characters in the differ ent figures of the drawings indicate corresponding elements or features of construction herein referred to.

As preferably constructed the improved grader comprises two compound scrapers which are adapted to be formed principally of wood but obviously may be made of any suitable metal one scraper comprising a vertical main blade 1 composed of wood and a. vertical secondary blade 2, the two blades being spaced a suitable distance apart and secured together by a pair of metallic tiebars 3 and a secured to the ends of the two blades, andtwo tie-bars 5 and 6 secured to the tops of the blades the two blades being adapted to be drawn on their lower edges along the ground. T he upper portion of the blade 1 has recesses 7, 8, 9, therein to receive tie-bars adjustably, and the blade 1 hasnlso a pair of draft eyes 10 and 11 arranged near opposite ends thereof on the forward side of the blade, the blade being of suitable length the two draft eyes. The blade 1 is prefer,- ably somewhat longer than the blade 2 and the blade 2 preferably extends somewhat rearward beyond the rear end of the blade 1, so that the tie-bars 8 and 4 are arranged at oblique angles to the planes of the two blades. The rear end of the blade 2 is provided with a hook 12. he other scraper comprises a main blade 13 and a secondary blade ll connected at their ends by a pair of tie-bars 15 and 16 and also secured together by a pair of tie-bars 17 and 18 attached to their tops. /Vhen the blades are composed of wood the lower portions of the forward sides are p o so that there is considerable space between gay,

vided with nczallie face plates 1 and 2 secured to the blades 1 and 2 respectively, and'similar plates 13' and 14' secured to the blades 13 and 14 respectively. The upper portion of the blade 13 has recesses 19, 20, 21, therein to receive tiebars adjustably, the blade 13 having also a pair of draft eyes 22 and. 23 that are SGCf IIGd to the forward side of the blade near the ends thereof. The rear end of the blade 14 is provided with a hook 24. Preferably the recesses in the upper portions of the blades 1 and 13 are covered by metallic plates 25-sccured to the tops of l the blades.

A short tie-bar 26 is'pivotally connected to the blades 1 and 13 with its-ends in the recesses that are formed in the tops of the blades, by means of pins 27 and 28, the tiebar being of suitable length to hold the blades 1 and 13 a suitable distance apart to permit the gravel or earth to form a slight ridge between the ends of the two blades after having been scraped to the middle of the road.v Another tiebar 29 somewhat longer than the tie-bar 26 is connected to the blades 1 and 13 by means of pins 30 and 31,-

the tic-bar having a suitable number of pinholes 32 and 32 therein so that the blades may be adjusted at different distances apart. Another longer tie-bar 33 is connected to the forward ends of the blades 1 and 13 by means of pins 34 and 35, the bar having a suitable number of pin-holes 36 and 36 so and draw the gravel or earth toward the middle of the road, but inasmuch as they do not extend toward the middle as far as the main blade they do not draw the gravel as closely to the middle as do the main blades. A foot-board 37 is arranged on the tops of the tie-bars and is secured to the tie-bar 26 by a bolt 38, the middle portion of the board 37 having a slot 39 therein through which extends a bolt 40 securing the board to the tie-bar 29, the forward, end of the board having a slot 41 therein through which, extends a bolt 42securing the board to the tie-bar 33, and the bolts 40 and 42 should be loosened when the blades are readjusted one with respect to the other.

The draft gear or rigging comprises a link chain 43 which is connected to the draft eye in w h which the rear end portion of the blade 1 is provided, the chain extending forward approximately parallel to the blade 13 to the forward end thereofhthe eye at the forward end of the blade 13 having a relatively short guide chain 44 connected thereto which is provided with a grip-hook 45 adapted to engage and hold fast to either one of. the links of the chain 43. A similar link chain 46 is connected to the eye 22 that is'opposite to the eye 10 on the rearend portion of the blade 13, and the chain 46 crosses the chain 43 and extends approximately parallel to the blade 1 to the forward end thereof, the eye llat the forward end of the blade 1 having a relatively, short chain 47 connected thereto which is provided with a grip hook 48 adapted to engage the chain 46. A beam 49 is suitably provided with a pair of books 50and 50 to which the chains 46 and 43 are connected, and a pair of double-trees 51 and 51 are suitably connected to the beam 49 so that draft animals may be hitched thereto, or any suitable power may be hitched to the beam 29 for drawing the grader. ii

A drag is provided for the purpose of levcling the ridge formed by the blades on the middle of the road, and it comprises two sills 52 and 52 on the under side of which v two beams 53 and 53 are secured so as to smooth the ridge of gravel or earth and pass overit, the beams being set at an in clined angle so that their lower edges trail rearward of their tops, their lower edges having concave middle portions 54 and 54 to make the middle of the road crowning. In order to provide sufficient weight which in some cases may be required, the sills 52 and 52 have a box thereoncomprising a bottom 55, a front 56, a back-board 57 and sides 53 and 59, the box being adapted to carry stones or boulders so as to add weight to the drag. The forward ends of the sills 52 and 52 are provided with shackles 60 and 60 to which chains 61 and 62 are connected, the chains being connected respectively to. the hooks 12 and 24 so that the drag is spaced a suitable distance rearward-of the compound scraping blades. The chains 61, 62, may be disconnected from the hooks when it is not desired to use the drag.

In operation, when it is desired to grade the sides of the road in addition. to the middle portion thereof in case the road is too wide to be covered by the grader at one operation, the blades should be adjusted somewhat as in Fig. 5, and the grip hooks 4 5and 48 readjusted on the chains 43 and 46 and the chains 50 and 50 readjusted with respect to the beam 49, so that the beam will extend at right angles to the direction of movement, and as willbe seen one of the compound blades may be drawn straight forward and serve as a guide-runner while the opposite one will extend out obliquely and scrape the gravel or earth toward the guiding blade,

sicose the latter, of course, being drawn near the middle of the road so that the earth will be drawn from the. extreme portions at; the sides of the road toward the middle. After both sides of the road have been graded and the earth drawn toward the middle, the blades should then be readjusted as should also the draft chains so as to be arranged somewhat as in Fig. 1, and then the drag 3, should be coni'iectetl to the blades, and the middle of the road may then be graded and dragged.

lt will be obvious that various modifications may be made in construction within the scope of the accompanyii'ig claims, and it should be understood that in some cases the middle tiebar 29 may be dispensed with, although desirable in the larger sizes of g thus describdd the invention, what is claimed as new, is-

1. A road grader including a pair of opposed compound scrapers comprising each a pair of rigidly connected blades, one blade oi" each pair being shorter than the other blade, and the shorter blades extcnding'rearward beyond the plane of the rearward ends oi the other blades, and a plurality of tie-. bars cci'inected adjustabl to the pair of opposed compound scrapers.

2. It road grader including a pair of opposed scraping blades, tie-bars connecting the scraping-blades together, the scrapingbl aces converging rearward, a pair of draftchains connected to the rearward portions of the sci-aping-blades, a beam connected. to the draft-chains, and guide-chains connected 5 to the forward portions of the scrapingl blades and the draft-chains.

3. A road grader including a pair of op t posed scrapii'ig-blades each provided at the forward end thereof with a chain having a hook on its end, a pair of crossed draftchains, each connected to a different one of the scraping-blades and connected also to the hook of the chain with which the op posed serapingblade is provided, and tiebars connected to the scraping-blades.

l. A road grader including a pair of op posed compound scrapers each comprising a pair of blades connected rigidly together, a plurality of tiebars coni'iectcd to one of the blades of each one of the compound scrapers, and a pair of draft-chains, each connected to each pair or blades.

5. A road grader including a pair of opposed scraping-blades, a plurality of tie-bars connected to the pair of scraping-blades, a toot-board mounted upon the tie-bars, a pair of dralt-cha'ins, each connected with an end portion of a different one ot the scraping blades and connected also with the opposite end portion of the opposed scraping-blade, the chains being crossed and extending under the tie-bars.

(3. It road grader including a pair of opposed soraping-blades, a plurality of tie-loars connected adjustably to the pair oi -scrapingblades, and a drag tainmatted also to the scra 'iing blades and comprising two sills, two beams secured to the under sides of the sills transversely thereof and at an inclined angle thereto, the laweredges of the beams having concave middle portions, and an open-top receptacle secured upon the sills.

In testimony whereof. we allix our signatures in presence of two witnesses.

ARNOLD ll. HADLEY.

HAltV id SlillllH.

"\"Vitnesses:

llviinn'rr Hnnnnr, A. ll. llUiurinn-n, 

